最危险的不是失败，而是自满。

理论的秘密在于，真理并不存在。

The character of a building is determined by the way it is used, not by its appearance.

The true value of a forest cannot be measured in board feet alone.

科学的进步不是一条直线，而是一系列曲折，有时在新的进展之前似乎会倒退。